Cubic feet are used for shipping, moving trucks, refrigerators and concrete or mulch orders in the U.S. One cubic foot is about 28.3 litres or 7.48 U.S. gallons.
How to use the Cubic Feet Calculator
- Length
- Width
- Height (depth)
- Every result field is editable: type into Volume or any other result and Height (depth) plus every other field update to match.
Results update as you type, and every field accepts the units shown in its menu.
How it works
Each dimension is converted to metres, the three are multiplied, and the volume is shown in every unit. Mix units freely, for example feet and inches. Type a target volume into a result to solve for the height.
Inputs explained
| Field | What to enter |
|---|---|
| Length | Units: ft, m, km, cm, in, yd … |
| Width | Units: ft, m, km, cm, in, yd … |
| Height (depth) | Units: ft, m, km, cm, in, yd … |
What each result means
- Volume = [Length] × [Width] × [Height (depth)]
- In cubic yards = [Length] × [Width] × [Height (depth)]
- In litres = [Length] × [Width] × [Height (depth)]
- In US gallons = [Length] × [Width] × [Height (depth)]
Example values
How the main result changes when Height changes and everything else stays at the example values above:
| Height (depth) (ft) | Volume (ft³) |
|---|---|
| 1 | 80 |
| 1.5 | 120 |
| 2 | 160 |
| 2.5 | 200 |
| 3 | 240 |
| 4 | 320 |
Formula
volume = length × width × heightWorked example
Inputs — Length: 10 ft; Width: 8 ft; Height (depth): 2 ft.
Results — Volume = 160 ft³; In cubic yards = 5.9259 yd³; In litres = 4,530.7 L; In US gallons = 1,196.9 US gal.
Frequently asked questions
How many cubic feet in a cubic yard?
27.
How many gallons in a cubic foot?
About 7.48 US gal.
How do I find cubic feet from inches?
Multiply the three dimensions in inches and divide by 1,728.
What formula does the Cubic Feet Calculator use?
volume = length × width × height.